Intervento di Federico Balzan, eAmbiente Srl Conferenza Finale Progetto GREEN SITE: “Supercritical fluid technologies for river and sea dredge sediment remediation”. LIFE 10 ENV/IT/343. Venezia, 13 dicembre 2013

1. Project GREEN SITE
“Supercritical fluid technologies for
river and sea dredge sediment
remediation”
– LIFE 10 ENV/IT/343 –
Federico Giovannone – eAmbiente Srl
Federico Balzan – eAmbiente Srl

2. Index
of the presentation
LCA and CF
Goals
Methods
Results
7a - LCA of the prototype
7b - Carbon Footprint of the decontamination
7c - Environmental benefits of the proposed technology
Conclusions

3. LCA and CF
What are they?
LCA (Life cycle assessment) is
an objective method for the
assessment and quantification
of energy and environmental
loads and the potential
impacts on environment of a
product/process/activity over
the entire life cycle, from raw
material acquisition to the
end of life.

4. LCA and CF
What are they?
CF (Carbon footprint) is an
evaluation throughout the life
cycle of a product in relation
to the impact category
"Global Warming" (expressed
in CO2 eq.)
Carbon
footprint
Carbon Footprint is actually a
part of an LCA.

5. Methods
of the application of an LCA to our project
LCA
CF
LCA
Life cycle assessment
Carbon footprint
Environmental benefits
Software
SimaPro 7.3.3 Analyst
Software
SimaPro 7.3.3 Analyst
Standard
ISO 14040:2006
ISO 14044:2006
Standard
ISO/TS 14067:2013
ISO 14064 1-2-3
Database
Ecoinvent 2.2
Buwald 250
US Input Output 2002
Idemat 2001
Computation
IPCC 2007 GWP 100y
Computation
Matrix system derived
from the
methodology of
environmental impact
assessment
Computation
EPD 2008 V 1.03
Eco-indicator 99 (H) V 2.08

6. Results
7a - LCA of the prototype
Functional unit: the prototype, considering every phase of the construction project and disposal.
System boundaries: LCA is conducted by defining product systems as models that describe the key elements of
physical systems. The system boundary defines the unit processes to be included in the system.

7. Results
7a - LCA of the prototype
Modelling: Each input and output has been verified through mass balance outgoing and incoming

8. Results
7a - LCA of the prototype
Life cycle inventory (LCI): the determination of material and energy flows, taking into account the entire life of the
product. The flows of materials and energy are then determined based on the income and expenditure of each subprocess in relation to the boundaries of the system.
First step:
• Type of material
• Industrial Processes
• Weights
Source: Board materials
or measurements in field
Second step:
• Collection of all
inventory and
allocation of flows for
all processes

9. Results
7a - LCA of the prototype
Third step: Creating the Model in SimaPro

10. Results
7a - LCA of the prototype
Impact assessment of the life cycle (LCIA)
Assessment (according to specific environmental parameters and methods) of the flow of material and energy
calculated during the inventory analysis: this estimate is intended to detect, summarize and quantify the possible
environmental effects of the systems examined, as well as to provide essential information to their evaluation.
Total LCA

11. Results
7a - LCA of the prototype
Total LCA
Method EPD 2008 V 1.03

12. Results
7a - LCA of the prototype
LCA of Only materials constituting the prototype
Method EPD 2008 V 1.03

13. Results
7a - LCA of the prototype
Total LCA excluding Assembling materials
Method EPD 2008 V 1.03

14. Results
7a - LCA of the prototype
Total LCA - Normalization
Method Eco-indicator 99 (H) V 2.08

15. Results
7a - LCA of the prototype
LCA of Only materials constituting the prototype
Method Eco-indicator 99 (H) V 2.08

16. Results
7a - LCA of the prototype
Total LCA excluding Assembling materials
Method Eco-indicator 99 (H) V 2.08

17. Results
7a - LCA of the prototype
LCA simulation for treating 100m3
Method Eco-indicator 99 (H) V 2.08

18. Results
7a - LCA of the prototype
Specification for process
Specification for substance
Resistors
Method EPD 2008 V 1.03

19. Results
7b - Carbon Footprint of the decontamination
The practice of storage and insulation at the island of Tresse is a practice that has seen confine,
31/12/2012, nearly 7 million cubic meters of sediment.

20. Results
7b - Carbon Footprint of the decontamination

21. Results
7c - Environmental benefits of the proposed technology
Colonna A Use in direct contact as materials in
the lagoon of Venice for the creation of mudflats,
salt marshes, morphological recovery.
The treated sediment from the project Green Site
Colonna B Use not in direct contact as materials
in the lagoon of Venice for the creation of
mudflats, salt marshes, morphological recovery.
Colonna C Destination at the site of the island of
Tresse.
Reference scenario for comparison
Over Colonna C Destination as reclaimed
materials in the “Molo Sali” site.
Over Colonna C, dangerous
Destination as waste at the “area 23
hectares” and subsequent disposal at
the landfill "Moranzani"

22. Results
7c - Environmental benefits of the proposed technology

23. Results
7c - Environmental benefits of the proposed technology
Examples of
description of
the matrices

24. Results
7c - Environmental benefits of the proposed technology
Simplification of the final result

25. Results
Conclusions
The analysis of the life cycle (LCA) of the prototype has shown, being very limited the use phase, a
charge of environmental impacts at the stage of production and assembly of the prototype
(including processes of raw material extraction and manufacturing inputs).
It was found, however, that in case of treatment of only 100 m3 (in projection) the impact of the
construction of the prototype falls below 10 %, going to amortize the initial investment.
The use phase showed an energy consumption as a function of the total weight of dredged
sediments and/or processed (t) very different from Green Site scenario and Tresse Island scenario. As
is obvious, however, the two services are very different.
The total environmental impact assessment (EIA) has shown clear advantages in Green Site scenario,
especially for the critical aspect of redistribution of sediments, fundamental in the Venice lagoon. It
remains to dissolve the critical aspect of energy consumption, which could presumably decrease if the
project was industrialized on a large scale.

26. Results
Conclusions
THANK YOU FOR YOUR KIND ATTENTION
For other general informations:
www.green-site.net
For other informations about LCA in Green Site:
f.balzan@eambiente.it
f.giovannone@eambiente.it